Bailey J Nordin, Columbia University, New York, NY, United States, Stephen E Cox, Caltech, Pasadena, CA, United States, Sidney R Hemming, Lamont-Doherty Earth Observ, Palisades, NY, United States, Stuart N Thomson, University of Arizona, Department of Geosciences, Tucson, AZ, United States, Peter W Reiners, University of Arizona, Tucson, AZ, United States and Kathy Licht, IUPUI, Earth Sciences, Indianapolis, IN, United States